This Prime-Line C 1177 Diecast Mortise Style Sliding Door Handle operates most mortise latches installed in the door. It is used by a wide variety of sliding patio door manufacturers that have mounting holes 3-15/16 in. on center. The screw mount and post have a 3/8 in. dia. hole for the non-handed mortise style handle to be mounted for either a left or right handed sliding door. Constructed of diecast, the door handle for patio comes with a matching white inside and outside handles and is strong and durable. Our factory sealed package contains all the necessary mounting hardware for a quick and easy installation of the handle to patio doors 2 in. thick. This handle lever features a low-profile projection of only 1-3/8 in. from the surface or your door frame, and it also features a lever position is adjustable to offset and centered. For further dimensional information, please see the line drawing.